AutoCodes – Generic – P2458

P2458 Code - Diesel Particulate Filter Regeneration Duration

Quick Answer

The particulates in the exhaust gases are collected by the Diesel Particulate Filter (DPF). Common causes include Exhaust leak, Improperly installed or loose Exhaust Gas Temperature (EGT), Low engine compression. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P2458 indicates Diesel Particulate Filter Regeneration Duration.
Common causes: Common causes include Exhaust leak, Improperly installed or loose Exhaust Gas Temperature (EGT), Low engine compression.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 36,929

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 14, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2458 Description

The particulates in the exhaust gases are collected by the Diesel Particulate Filter (DPF). When the filter becomes saturated with particulates, they are incinerated by a regeneration process. The regeneration process increases the exhaust gas temperature, warning the Diesel Oxidation Catalyst (DOC) first, the warning the DPF. The Engine Control Module (ECM) monitors the system with inputs from two Exhaust Gas Temperature (EGT) sensors 1 and 2 and the exhaust differential pressure sensor.

OBDII Code P2458 - Diesel Particulate Filter Regeneration Duration - AutoCodes.com — P2458 Code - Diesel Particulate Filter Regeneration Duration

What does this mean?

What are the Possible Causes of the DTC P2458?

Exhaust leak
Improperly installed or loose Exhaust Gas Temperature (EGT)
Low engine compression
Corroed fuel injector
Water in the fuel system

How to Fix the DTC P2458?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2458 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2458 code?

Need more information on how to fix the P2458 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2458 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P2458 Ford — Diesel Particulate Filter Regeneration Duration
P2458 GMC — Diesel Particulate Filter Regeneration Duration

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2458 Code

1. What are the common symptoms of OBDII code P2458?

The common symptoms of OBDII code P2458 include poor engine performance, decreased fuel efficiency, and the illumination of the check engine light.

2. What does OBDII code P2458 indicate?

OBDII code P2458 indicates an issue with the Diesel Particulate Filter (DPF) regeneration duration being outside the normal range.

3. What are the possible causes of OBDII code P2458?

Possible causes of OBDII code P2458 include a faulty DPF pressure sensor, a clogged DPF, issues with the DPF regeneration system, or a malfunctioning engine control module (ECM).

4. How can I diagnose the cause of OBDII code P2458?

Diagnosing the cause of OBDII code P2458 typically involves using a scan tool to retrieve the code, inspecting the DPF system components, checking the DPF pressure sensor, and verifying the operation of the regeneration system.

5. What are the repair options for OBDII code P2458?

Repair options for OBDII code P2458 may include replacing the DPF pressure sensor, cleaning or replacing the DPF, repairing the regeneration system components, or reprogramming the ECM.

6. Can driving habits affect the occurrence of OBDII code P2458?

Yes, frequent short trips or low-speed driving can contribute to DPF issues and the occurrence of OBDII code P2458. It is recommended to periodically drive at highway speeds to aid DPF regeneration.

7. How important is it to address OBDII code P2458 promptly?

It is important to address OBDII code P2458 promptly to prevent potential damage to the DPF system, ensure optimal engine performance, and avoid further complications that may lead to costly repairs.

8. Is it safe to continue driving with OBDII code P2458 present?

While it may be safe to drive with OBDII code P2458 present in some cases, it is recommended to address the issue as soon as possible to prevent any potential long-term damage to the DPF system.

9. Can a DIY enthusiast fix OBDII code P2458 at home?

Depending on the cause of OBDII code P2458, some repairs may be possible for experienced DIY enthusiasts. However, diagnosing and repairing DPF-related issues may require specialized tools and knowledge, so professional assistance is often recommended.

10. How can I prevent OBDII code P2458 from recurring in the future?

To prevent OBDII code P2458 from recurring, it is important to follow the manufacturer's recommended maintenance schedule, drive the vehicle at highway speeds periodically, use high-quality diesel fuel, and address any DPF-related issues promptly.